condition mean min max ZT0-3 0.0615242 0.0615242 0.0615242 ZT4-7 0.0783546 0.0783546 0.0783546 ZT8-11 0.00374966 0.00374966 0.00374966 ZT12-15 0.0243926 0.0243926 0.0243926 ZT16-19 0.04837985 0.04837985 0.04837985 ZT20-23 0.0718229 0.0718229 0.0718229